Change-speed gearing.



F. E. SPERRY.

CHANGE SPEED GEARING.

ABPLIOATION FILED AUG. 26, 1912.

1970!,634.s Patented Aug. 19, 1913.

' 5 SHEETS-SHEET 1.

IIS

s "f l P. B. SPERRY.

CHANGE SPEED GEARING.

APPLICATION FILED AUGnvZ, 1912.

1,70634 Patented Aug. 19, 1913.

35 5 SHEETS-SHEET 2.

l Ff l "f 27l Z/Jf/ v ',L 3 Z5 A X 13/ E. SPBRRY CHANGE SPBD GEARING. APPLICATION FILE-D Alltags, 1912.

@@7036340 Patented Aug. i9, 39113..

5 SHEETS-SHEET 3.

E" E. SPERRY.

CHANGE SPEED GEARING.

APPLIoATIoN FILED 111111.26, 1912.

Patented Aug. 19,1913.

F. E. SPERRY. GRANGE SPEED GEARNG.

APPLIGATION FILED AUG. 2s, 1912. :H ,G'YGQb Patented llg. 19, 1913. 5 SHEETS-SHEET 5.

Yi .i @ma i( u u n u /n n )m a @P5 ll E useful l UMTED smiles PATENT onirica.

FRANK SPERRY, F AURORA, ILLINOIS, ASSIGNOR TO AURORA AUTOMATIC MACHINERY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. n

CHANGE-SPEED creanme. I

Specification of Letters Patent.

Patented am. in, isis.

-Application filed August 26, 1912. Serial No. 717,199.

To all whom #may concern:

Ile it known that I, FRANK FJ. SPERRY, a citizen of the United States, and a resident of Aurora, in the county of Kane and State ef Illinois, have inventedecertain new and Improvements in Change-Speed Gearing; andy I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which *form a part of this specification.

This invent-ion relates to improvementsJ in change speed power transmission devices and more particularly to improvements in that class of ichange speed devices wherein planetary gearing is employed as a means of obtaining the desired change of speed and which are applicable for use on motor vehicles and particularly upon motorcycles.-

The invention is herein described andI v shown in the accompanying drawings as embodied in a change speed ldevice that is mounted upon the rear axleof a motor cycle and in connect-ion or association with 'a coaster 'brake of amotor cycle.

The invention ponsists in the matters herein described and more particularly pointed out inthe appended claims.

In the drawings, Figure 1 Vis a view in longitudinal cross section of the change speed gearing, showing its members in position to actuate the part to be driven at the slowv speed; Fig. 2 is a sectional view like Fig. 1, showing the members ofthe device in position to drive at'the high speed; Fig. 3 is agview in cross section, taken on line 3--3 of Fig. 1; Fig. 4 is a view in front elevation of the shif ing clutch ring separate from the other parts; Fig. 5 isa View in front elevation of the gear Wheel or intermediate driven member, separate from the other parts; Fig. 6 isa sectional view taken on line 6--6 of Fig. 1; Fig. is a sectional view taken online-747 of Fig. 1; Fig: 8 is a'view in front elevation'of ,the

' central part or disk of the sprocket Wheel;

' Fig, 9 is view in front elevation of the central body support, constituting a part iot' the primary .driven member; Fig. 10' is a sectional view taken on line 10-10 of Fig.

3; Fig. 11 is a sectional view taken-on line 11-11 of Fig, 7 Fig. 12 is a view inside elevation of the complete device showing the same mounted on the 'vehicle frame, and a portion of-'the controllingrod; Fig. 113 is a plan view of the same. g

In the form of a change speed device shown in the accompanying drawings, the

=same embraces Jas its principal parts a non- -rotative bearing member, a primary dr1ven member, a4 driving member, and a clutch mechanism adapted to lock the driving mem- ;ber to either the primary .or intermediate driven member. As illustrated in said ydrawings, the nonfrotative bearing member embraces an axle 11, and a tubular member or sleeve 14 surrounding one end of .said axle, and provided with external gear teeth y14". The axle 11 and sleeve 14 are rigidly affixed to the frame of the vehicle. The axle 11 shown is the rear axle of a motor cycle and is adaptedfor attachment to the' frame member 11a of such a motor cycle, in a familiar manner, as shown'in Figs. 12 and 14. The primary driven member is adapted to turn or rotate on the said non-rotative bearing member-and embracesv a tubular part lor hub (shell 10, an annular body member 16, whichA surroundsk and is rigidly attached to one end of said hub shell, .and a stud-carrying' ring 18 rigidly attached -to the body member 16 concentrcally with same. Said ring 18 is provided with a plurality of rigidly attached studs 19, 19' extending from the .outer side of said ring` parallel with the central axis of the device, `and carrying a. plurality of pinions 20, 20, which intermesh with the fear teeth14b on the sleeve 14. The

hub shell 10, one end only of which is shown, constitutes the rear hub of a motor cycle, to which the -wheel spokes arev attached. Said hub shell is mounted concentric'ally with the axle 11, and is supported at its opposite ends by suitable bearings.

'In the drawings, one only of such bearings is shown, the same 'being located between the end of the hub shell 10 and the sleeve14,.

as hereinafter more particularly described. f The lntermediate drlvenfmembericonslsts of a` gear-wheel 21, havinga hubQ'l-t, which is mounted and 4turns on7the ixed'sleeve 14 rin `21" and engaging the said pinions 2 0, 20.

h 'e'drivlng' member consists of an annula fne'mberor apertured disk 24 which is untedand is adapted to turn upon the btidyfmmber 16' and has attached to its outer margin a ring 25 provided with a sef The bodymember 16 1s provi ries of sprocket teeth 25", the parts 24 and 25. together forming a sprocket wheel. Said` sprocket wheel is adapted to receive a sprocket chain (not shown) by .which the rotary motion is transmitted from an engine or motor to thedriving member.

l lded with an annular cylindric Bange 16", which extends outwardly therefronl--andl surrounds the inner part of the ring '21" of the gear-wheel 21.l The-clutch mechanism embraces, in gener'al, features of construction as follows: The .annular body member 16 is provided with an outwardly extending peripheral flange 16"-, located adjacent to the inner face of said body. member, or 'at the side of the same nearest the hub shell 10,.and also adjacent-.to the sprocket' Wheel or drivin member 24. Said flange 16" is providedwith a series of notches 16c (Fig. 9), forming `a plurality of radially extending lugs or locking projections 16". The intermediate driven' member or ear wheel -21 is provided on the outer sur ace of its cylindric rim or gear-rin 21",' with an outwardly extending, annular angel 21d (Fig. 5) provided with a plurality 0f notches 21 forming a series of radial projections or locking teeth`21, located at the outer margin of the ring 21", and exteriorto the outer margin of the annular flange 16" on the body member 1.6. The driving member, or sprocket wheel 24, is provided on its. outer .fac-e, with an annularlyarrang'ed set or series .of segmental arms 24 (Fig. 8),

. which extend laterally therefrom radially outside of the body member 16 and the gear wheel 21. 'Said arms 24 are spacedI radially .from the cylindric outer face of the body member 16 "and its annular flange .16", and are adapted to form between them a series of guide' slots 24", extending longitudinally'of, 'or parallel with the. central axis of the de uvice. In addition to the parts described, the clutch mechanism embraces an axially movable or sliding clutch lring 26, which surrounds and slides laterally on the cylindric outer surface of the body member 16 and flange 16", and islocated i he space between said body member andt e segmental arms-24 of the sprocket wheel 24. The def,

' vice shown for givinglsliding movement'to or actuating said clutch ringr will be hereinaiter described. Saidl clutch ring 26 carriesa series of keys, 28,28, which are attached lx vand move with said clutch ring. Said keys are fitted between the 'arms 24, 24., of the sprocket wheel 24, and slide in theA slots 24, between said arms,. in the direction of the central axis of the device. The.inner ends of said keys are adapted to enter the notches 16 and to thereby engage the-'locking keys or teeth 16d on the body member 16 of the primary drivenmember. The outeror forward ends of thevsaidl keys are adapted to thel locking-L lugs'ior teeth v-21 o n the gear wheel or intermediate driven Vmember 21; the keys 28; 28', ybeing constantly engaged between or with the arms 24 on the lsprocket wheel 24. Thesaid keys, together with the clutch rin v26 turn or rotate with said sprocket w eel, and when said. clutch ring and the keys areshifted, the keys act to con- -enter the n otches 21,l and to thereby engagel -nect or lock the said sprocket wheel either to the body -16 ofthe primarydriven mem'- ber, 'or to the gear Wheel 21, constituting the intermediate driven member:i When the said sprocket -whcel 24 is locked tio they body mem` ber, the hb 10, and the wheel of the vehicle are locked to and turn .withrthe said sprocket wheel. When the said sprocket wheell is released from the body member 16, and locked to the gear wheel 21, the latter turns with the sprocket wheel, and by reasonll of its geared connection with the pi-nions "20., 20, and',y the geared connection of saidvpinions with the non-rotativelsleeve 14, said pinions are carried bodily aroilnd the said sleeve 14,

body member on which said -pi'nions are mounted. The body member and hub are then rotated at a rate 'of speed slower than that of the sprocket wheel, withV a corre1 sponding increase in the turning moment transmitted to the wheel hub and the vehicle Now referring more in detail to the construction shown in the several parts described, and tio the means for operating the clutcli mechanism, the same embrace features of construction vas follows: ASaid hub shell lthereby eecting rotative movement of the v 10 is provided in its end with a bearing ring 15v forming a ball race andadapted'for contact with a plurality of annularly arranged balls 15 of an ,anti-friction ball bearing. Said balls travel in a ball race or groove 15" in the 11onrotative-sleeve 14 and are held therein by means of a flanged retaining ring 14". Within the hubshe1l'1O and upon the fixed sleeve,14 are mounted the movableand stationary brake-disks 13a and 413" and end- Wisc movable member 12 'of a coaster brakedisk, which, having no relat-ion.tothegpresent'v invention, willnot again beg' provided'with a .central hexagonal opening .(Fig. 9)' and fits upon a'correspondingly said body member being held or clamped against a shoulder formed in the hub shell by means of an internally threaded collar 17 and a check lult l17a applied to the screw threaded end ofsaid shell. The body member 16 is provided with an attached sleeve or hub'16a which extends inwardly vfrom the body member over the adjacent part of the hubshell which latte is thickened to form the said shoulder. 'lhe said annular flange 16 forms a cylindric bearing for the disk 24 forming the body of the driving member which bears against the inner face of said body member and is held on the body member by means of a ring 24a having screw threaded engagement with the vhub 16. A washer 24b of compressible material is interposed between the disk 24 and4 the ring 24, and acts to afford a frictional o-r yielding connection between said parts, affording a slight degree of resistance to the turning of the lsaid sprocket wheel or driving member relatively to the primary driven member. The ring 25 provided with' the sprocket teeth 25" is det achably securedvto the disk 24 by means of bolts 25, enabling said ring to "be removed and replaced by a ring of larger or smaller external diameter, when desired.

I The rear face of the annular flange 16b (Fig.

9) on the body member 16, on which are formed the clutch teeth 16d, forms an annular bearing face against which rests or bears the central body part or disk 24 of the4 sprocket wheel or driving member. Thestud-bearing ring 18 is rigidly attached to the body member 16 adjacent to and within the flange 16b thereof by means of screws 18a and dowel pins 18b (Fig. 11). The radial width of such ring is such that it extends inwardly past the adjacent end of the hub shell 10, and closely surrounds the fixed sleeve 14 adjacent to the inner ends of the gear teeth 14b on the said sleeve. The bearing studs 19, 19 for the pinions 20, 20 are secured in said ring 18 near its) inner edge, and the cylindric rim 21b of the gear Wheell 21, which extends within the said flange 16", has its inner edge closely adjacent to or in bear ing engagement with the outer face of the stud plate 18 exterior to said pinions. Said gear wheel `21 is supported on the outer eiid of the sleeve 14 through the medium of a roller bearingA consisting of a plurality of cylndric rollers 22, mounted on bearingpins 22a, which extend between caging rings 22". Said rollers 22 have contact ^with a cylindric bearing surface formed on )the stationary sleeve 14 exterior to the gear teeth 14". The clutch ring 26 (Fig. 4) with which the .keys 28 are connected has'attached to it an outer ring 27 which surrounds the arms 24. The

outer clutch ring has its inner surface spaced romrthe outerA surface of the arms 24c and 1s provided with a plurality of inwardly extending lugs27, corresponding in location into contact with said keys.

with the keys z8, and extending inwardly Said lugs 27el are extended at right angles with theside'` faces of the ring 27 to form a series of arms 27h, arranged parallel with said keys 28 and in contact with the outer faces of said keys.

-Each of said keys 28 is providedlin its inner face with a notch of a depth and Width suiiiclent to receive 4the inner clutch ringl 26 so that the interior surfaces of said keys 28 and the inner ring 26 are tlush with each other, asseen in Figs. 1 and 2. The inner ring 26 and the outer ring 27 are rigidly held together by means of radially arranged rivets 28a passing through the inner ring 26, the keys 28, and the lugs 27 on said outer ring 27. By this construction the clutch ring 26 is adapt-ed to slide between the flangev 16b of the body member 16 and the arms 24 on the sprocket wheel member 24,- while t-he keys 28 rest in the slots between saidearms 24, and the cuter ring 27 is exterior to and free from vcontact with said` arms 24, as' clearly seen in Fig. 3. The keys 28 project at theirends from the clutch ring 26 and outer ring 27 toward the disk 24 and are adapted, when theclutch ring is shifted inwardly, to enter` or engage the notches'l between the lugs or teeth 16r1 on the bodymember 16. The outer projecting ends of the' keys 28 extend laterally from said rings 26 and v27 and arc adapted to engage the notches 21e of the gear wheel 21, when said rings 26 and 27 are shifted outwardly on or relatively to the arms 24a. The shifting movement of said clutch rings 26 and 27 -is accomplished by means of shifter blocks 29 (Fig. 3) arranged diametrically oppositey each other and which straddle the outer ring 27 ofthe two clutch rings inthe manner shown in Fig. 10. Said shifter blocksj29 are rigidlyF attached to a shifter yoke 30 (Figs. 3 and 6). Said shifter yoke is rigidly attached to a square shaft 31 extending at right angles to the central axis of the device and pivoted at its endsin fixed bearings 32, 32. Said shifter 'yoke is additionally sup ported` by means of a brace 33 riveted at either extremity to the shifter yoke 30 and at its central portion to the pivot shaft 31.

To the upper extremity of said pivot shaft.

31 is rigidly attached a lever arm 36, the swinging end of which is pivotally connected with an auxiliary lever 37 (Figs. 12 and 13), by means of a bolt 38. Said aux-' iliary lever is provided with a short and a .long arm extending at right angles to each other from the connecting bolt 38. The shorter arm 37 engages a stationary pivot 39 bymeans of a scmicircular notch in said shorter arm 37% vAt the extremity of the longer arm v37b of the auxiliaay-` lever 37 is located a clampg40 adapted to hold an operatingrod 41, by means of which the power 'is conveyed to operate the clutch mechanism. y

margin of the housing 35 and extends yradially inward therefrom and substantially meets the Harige and an inner dust ring 43 mounted 'upon the sprocket ring 25 by means of thebolts a.

The non-rotative sleeve 14 is held from rotating by means of a vert-ical plate provided centrally with a vflat sided hole adapted toengage a square shoulder formed'upon venting the rotation of said sleeve relative to the said plate 44. Said plate 44 is provided with a radially extending arn'r 44a engaging at its outer end a .yoke 45, rigidly attached to and extendingbetween the. frame members 46, 46 of the vehicle, and by means of which the plate 44 is restrained from rotation. The front wall of the casing 35 is rigidly' attached by rivets 44b to said plate 44.

In describing the operation of this device, it may be first assumed that a constant power is being applied to the driving member .or sprocket ring 25 from the vehicle motor, through the medium ofa sprocket chain,

thereby rotating the sprocket at 'a uniform speed. Furthermore it is assumed that there is a manually operable means provided upon the vehicle whereby moti-on may be transmitted through the operating rod 41 to give lthe clutch ring the necessary lateral shifting movement. To'drive at the 10W speed the clutch ring;o 26 vis shifted tothe position shown in Fig. 1, in vwhich position the keys 28 of the said clutch ring engage both the slots between the arm 24c of the sprocket support 24 and the teeth 21t of the gear wheel or intermediate driven. member 21.

the clutch teeth 16d of the primary driven member 1 6. The clutch ring therefore acts to lock the intermediate driven member to the sprocket wheel or driving member soA that they rotate together. \The interna l gear of the intermediate driven member, meshing with the pinions gives said pinions rotation about their shafts 'and also, since said pin- 'the outer end of the said sleeve 14, thus pre vAt this time said keys are disengaged from ions mesh with the gear teeth 14" of the nonrotating sleeve 14, the pinions are forced to rotate about the said non-rotative 'bearing member 14. Thepinionstuds 19, the'stud` bearing plate'lS., and the central body support 16, being rigid with the hub shell 10,

intermediate driven members.

. f' the rotative milted directly to the said hub shell 10 and v thence to the vehicle wheel. If it is desired to change from the low to the high speed, it is necessary to disengage the intermediate driven member from the driving member and to lock thc primary driven member dimotion of the pinions aboutthe non-rotative bearing member 14 is transreetly to the driving member, and by so doing transmit rotative motion directly from the driving member to the hub shell' 10.

This is doneliy'shifting the clutch ring' to its outer'extreme position, as shown in Fig. 2. The change of speed, however, Adoes not take place immediately, for duringv the initial movement of the clutch ring the keys of the clutch ring are disengaged from the locking teeth of the 4intermediate -driven member. The clutch ring and its keys are then brought to a neutralposition, in which no power is transmitted, because .the driving member and the driven members are disconnected. When the locking teeth of the intermediate driven member are disengaged A from ,the keys there takes place a-relative rotation between the sprocket member and the primary driven member which brings the locking notches of the latter opposite the clutch teeth of said driven member. The shifting power exerted upon the clutch ring being constant the keysof saidclutch ring will slip into the oppositely arranged slots and notches, thus clutching the primary I driven member to the driving member and a direct transmission of power will then be effected from the driving member 'to the prlmary driven member.

The general construction and arrangement ofthe parts in the change speed device'de scribed and shown is such that the parts constituting the planetary gearing, to Wit, the

non-rotative gear Wheel, the rotative gear wheel, and the intermediate 4pinions, are located atv one side of the main driven member which carries said pinions, that the said primary, driven and intermediate driven members .are provided with peripheral clutch teeth, andv that the shifting clutch member and also the part of it upon the driving member with which said clutch radially exterior to the said primary and of this arrangement of the parts, the device as a .whole occupies a\ minimum of space, or

v member is engaged, surrounds or is arranged As-aresult is made exceedingly compactin the direction of the axis of rotation of the parts. The resnlt stated also arises to a large degree from the employment of the cylindric flangeon the primary driven member arranged to extend over or around the intermediate driven member, s'o as to form an annular bearing surface for the clutch ring. v

The general'advantages of this device applied to a motor vehicle and particularly to a 1.3.0

Pprimary` driven ing the operative conditions of the motor,

' and the ability to increase or. decrease the driving power Iot the vehicle by means indepentlent of the motor. The latter advantage is perhaps the most important, for occasions frequently occur, as in the case of driving the vehicle through sand or mud, where increased power and low speed are necessary. parts, whereby the members constituting thel clutch mechanism are arranged radially exterior to or surround the parts constituting the planetary gearing, has the important advantage of affording a change speed device occupying a narrow spacel laterally or in the direction of the central axis of the rotative parts, this. being a feature of importance in the Vconstruction of motorcycles, wherein lateral coinpactiiess in the operative parts is` a desideratum.

It is not desired that this invention be limited to use on or in connection with motorcycles, or to the number of speeds obtainable, for the device could be used with the same results upon any type of motor veliicle.

Abelt drive may be easily substituted for thechain drive herein speciied, ltherefore l do not desire to limit the invention as to the manner of power transmission.

l claim as my invention: V

1. In a change speed device, the combination of a non-rotative bearing member, a

driven member, a driving member, means connected with the primary driven member and interposed between the intermediate driven member and the non-rotative bearing member, Vadapted to reduce the rotative speed of said intermediate driven member relative to the speed of the primary driven member, and means located radially exterior to theoprimary and intermediate driven members for locking said driving member to the periphery of either said intermediate Sriven memberor said primary driven mem- 2. In a change speed device, the combinationof a non-rotative bearing member provided with external gear teeth, a primary driven member, 'an intermediate driven member provided with internal gear teeth, a driving member, pinions mounted on said primary driven member and adapted4 to `mesh with the gear teeth on said non-rotative member and also to mesh with gear teeth of said intermediate. driven member, and means locatedy radially exterior to the primary and intermediate driven members for locking said driving member to the periphery of either. the -saidintermediate 'or primary driven member.

The relative arrangement of thev y the shifting of said clutch ring.

member, an intermediate' 3. In a change speed device, the combination of a non-rotative bearing member provided with external gear teeth, a primary driven member having bearing upon said non-rotative bearing member, an intermediate driven member, also having bea-ring upon said non-rotative bearing member and pro-l vided with internal gear teeth, bearing studs rigidly attached to said primary driven member, pinions mounted on said studs and meshing with -the gear -teeth of said vnonrotative member and of saidv intermediate driven member, a driving member looselymounted on said primary driven member,

and means for locking said driving ,member either to said primary driven member or said intermediate driven member.

4. In a change-speed device, thecombination of a non-rotative bearing member, a primary driven member, an intermediate driven member, pinions mounted on said primary driven member and interposed between said non-rotative member and intermediate driven member, a driving member loosely mounted on the primary driven member, a clutch ring member having axially sliding and non-rotative engagement with said driving member, and means upon said primary and intermediate driven members and said clutch ring for lockingeither of said driven members to said driving member, -through 5.. In a change speed device, the combination of a non-rotative bearing member provided with external gear teeth, a primary driven member mounted on said bearing member, an intermediate driven member also mounted on said bearing member and provided lwith a cylindric rim having in-A ternal gear teeth, a driving member mounted on the primary driven member, an annu-,- lar stud-bearing member rigidly attached at its outer margin to said primary driven member and provided near its inner margin With studs extending laterallyfrom its side face, pinions mounted on said studs and meshing with the gear teeth on said bearing member and intermediate driven member, and means radially exterior to the primary and intermediate driven members for locking said driving member terinediate or' the primary driven member. l

6. In a change speed device, the'icombin'ation of a non-rotative bearing memberl proL vided with external gear -teeth, .a primary driven member 'moiinted on said bearing membeig'an intermediate driven member also mounted on said bearing member ai'id pro-v vided With a eylindric rim having internal'- gear teeth, saidpriinary driven member lie-- ing provided with rigidly attached, annularly arranged Astuds, pinions mounted on said studs and adapted to ineslrwith the gear teeth on the said 'bearing member and intermediate. driven member, and locking means located radially exterior to the 'rim of the intermediate driven'member adapted for locking said driving member either to the periphery of the primary driven member or to the periphery-of the intermediate driven member.

7. In a change speed device, the combina-l tion of a non-rotative bearing member .provided with external igear teeth, ,a' primary driven member having bearin on said nonrotative member at the inner slde of the gear teethon the latter, member having bearing on said non-rotative member at. the outer side of said Oear teeth, said intermediate driven member eing'provided with a eylindrie rim ertending inwardly over the teeth on the bearing member and provided with internal gear teeth, pinions lmounte on the primary driven member and intermeshing with the gear teeth of the non-rotative member and intermediate driven member, a driving member mounted on the primary driven member and an laxially shiftable clutch ring arvranged radially exterior to the primary and intermediate driven members, l said v eluteh ring having laterally sliding and nonrotative connection with said driving mem` ber and being adapted for interlockmg engagement with either the primary driven member or intermediate driven member.

8. In a change speed device, the combination of a non-rotative bearing member provided wit-h external gear teeth, a primary driven member having bearing on said nonrotative member at the inner side of the gear teeth on the latter, an intermediate driven member having bearing on said non-rotative member at the outer side of said gear teeth, said intermediate driven member being provided With a eyli'ndrie rim extendingv inwardly over the teeth of the bearing member and provided with internal gear teeth, pinions mounted on the primary driven member and intermesbing with the gear teeth on the non-rotative member and the intermediate driven -member, a driving member mounted onl the primary driven member and projecting radially beyond the peripheral surface of the same, said primary driven member-being providedwith an annular flange overlapping the cylindric rim of the intermediate driven member and with an exterior cylindrie surface and Isaid pri` mary and intermediate driven members being provided with peripheral, radially extending vlor-,king teeth', and a elnteh ring adapted to slide laterally on the peripheral surface of the primary driven member, said clutch ring having laterally sliding and non- I rotative connection with said driving member and being ada ted for locking engage ment with the loc `ng` teeth on either the primarv or intermediate driven members.

9. In a change speed device, the combinalmeshing with the gear teeth on the primary an intermediate driven tion of a non-rotative bearing member, protion of a non-rotative bearing member provided with' external gearteeth, a' primary driven member mounted on said bearing member, anintermediate `driven member also mounted on said bearing member and 70 provided with an annular rim having in-A terna] gear teeth, a'driving member mounted on the primary -driven member, pinions mounted on the primary drlven member and:

and intermediate driven members, said prl'.- mary', driven member being provided with an annular flange extending'laterally over the rim of the said intermediate driven member, and means for locking the driving member to thel periphery of the primary driven member or to the periphery of the intermediate driven. member, comprisin an' axially shiftable clutch ring surroun ing and sliding upon the said annular flange of the primary driven member. Y U

10. Ina change speed device, the combination of a non-rotative bearing member provided with external gear teeth, a primary driven member mounted on said bearing member, an intermediate driven member also mounted on said bearing member and provided with internal gear teeth, pinions mounted on tbe primary driven member and meshing with said gear teeth on thebearing member and intermediate driven member, a driving-member, said primary and intermediate driven members being provided with peripheral locking teeth, and an axially yshit'table annular clutch ring member arranged radially exterior to the primary and intermediate driven members and havingl nen-rotative and laterally sliding connection with said 'driving member, `said clutch member being adapted for locking engagement with the locking teeth of either the said primary or intermediate driven member. v

l1. In a change speed device', the eoipbinavided with external gear teeth, a primary driven member mounted on said bearing member, an intermediate driven` member also mounted on said bearing member and provided with internal gear teeth, piniens L15.

mounted on the primary driven member and .l meshing with said gear teeth on tbe bearing member and intermediate driven member, i driving member provided with a seriesl of annularly arranged, laterally projecting arms surrounding the intermediate drivenI member, said primary and intermediate driven members being. provided with peripheral locking teeth, and an axially shittable clutch ring located radiallyexterior to said primary and intermediate driven members, said clutch ring being provided with keys having sliding engagement with the arms of the driving member and adapted for locking engagement with the lorking 13C- teeth of either the primary o-r intermediate driven member.

12. l'n a change feed device, the combina-,f tion of a non-rotative bearing member, a primary driven member mounted on said bearing member and provided With an external, cylindric surface, an intermediate driven member also mounted on said bearing member and provided with internal gear teeth, a `plurality of pinions mounted on the primary driven member and meshing with the gear teeth l.on the bearing member and intermediate driven member, said primary and intermediate driven membersbeing each provided upon its periphery with radially projecting locking teeth, a driving member provided With annularly arranged armsarranged radially exterior to' the primary .driven member, and anaxially shiftable clutch ring surrounding and adapted to slide laterally on the eylindrie surface of the pri-l mary driven member, said clutch ring being provided with a plurality of locking keys, said keys having laterally sliding engagement with the arms on the driven member, and being adapted for engagement with the locking teeth of either the primary or intermediate driven member.

13. 1n a change speed device, the combination of'a non-rotative bearing member provided with external gear teeth, a primary drivenmember mounted on said bearing member, an intermediate driven mein- Aber also mounted on said bearing member and provided With internal gear teeth,

pinions mounted on the forward face of the primary driven member and meshing with the gear teeth on the bearing member and intermediate driven member, a driving member mounted on the rear face ofthe primary driven member and provided with a plurality of laterally extending arms ar-- ranged radially exterior to the primary and intermediate driven members, said primary and intermediate driven members being each provided with peripheral, radially extending, locking teeth, and an axially sliding clutch ring provided with a plurality of locking keys, each ofwhich haslaterally sliding engagement with the arms) of the driving member, said keys being adapted for engagement either with lthe locking teeth of the primary driven member or'the locking teeth of the intermediate driven member. i

14; In a change speed device, the combination of a non-rotative bearing member provided with external gear teeth, a pri-v mary driven member, an intermediate driven member provided with a cylindric rim and ivvith internal gear. teeth, pinions4 mounted on the primary drlven member and meshing' with the gear teeth of the bearing and intermediate driven members, the said with an annular marginal flange extending 'fover the rimfofA the intermediate driven extending armssurrounding and spacedV radially from the cylindric exterior surface of the primary driven member, a laterally shiftable clutch ring` mountedl on the cylindric surface of the primary driven member and provided witha plurality of locking keys, :said keys having sliding engagement with the arms on the driving menber and being adapted for locking engagement With the teeth of either the primary driven member v-or of the intermediate driven member.

15.*111 a change speed device, the com bination of a non-rotative 'bearing member provided with external gear teeth, a primary driven member mounted on the said bearing member, an intermediate driven member also mounted on said bearing` member and provided with a cylindric rim hav ing internal gear teeth, pinions mounted on the primary driven` memberand Imeshing with the gear teeth of the bearing member "and intermediate driven member, said primary driven member having a cylindric peripheral surface and a plurality of radial locking teeth at the rear edge of said cy-.

annular members, one of which is adapted to slide' upon the cylindrie, peripheral surface of the primary driven member between said surface andthe arms on the driving member, and the other of Which surrounds said arms, and keys carried byrsaid clutch ring ,and engaging the arms on the driving member, said keys beingv adapted for en-y gagement with thelocking teeth on either the primary or intermediate driven members l 16. In' a, change speed device, the combination ofa non-rotative bearing member, a primary driven member, an intermediate driven'member, a driving member provided with laterally extending armsl located radi` ally exterior to the -primary 'and intermediate driven members', an axially shiftable clutch lring comprising an inner rmg located aprimary driven member being pI'Ovided inside of said arms and an outer ringv 1ocated exterior to said arms, and keys interposed between said annular members and adapted for locking engagement at their ends with the locking teeth on either the primary driven member or intermediate driven member, said annular members of the clutch 'ring and keys being rigidly Vconnected by'rivetspassing'thi'ough the said annular members and each of said keys.

17. Ina chang@ speed device, the combination of a non-rotative bearing member provided with external gear teeth, a primary driven member, an intermediate driven member provided with internal gear teeth, pinions mounted on the primary driven member and meshing with the gear teeth of the bearing and intermediate driven members, a driving member provided with laterally extending armsv which are spaced radially from'the periphery of the primary driven member, a clutch ringconsisting of two annular members, one ofwhich is 1nterposed between the periphery ofthe primary driven member andthe laterally extending arms ofv the driving member and the other of which is located exterior to the said arms, said vclutch ring being adapted for locking engagement with either the prif mary or intermediate driven member, and non-rotative means engaging the outer 'aii. nularmember of said clutch ring for giving shifting movement to the latter.

18. In a change speed device, 'the' combination of a non-rotative, bearing member provided with external gear teeth, a primary driven member, an intermediate driven member provided with internal gear teeth, pinions mounted on the -primary .driven member and meshing with the gear teeth of the bearing and-. intermediate'driven members, a drivingu'iiember provided with laterally extending arms which are spaced radially from the periphery of the primary driven member, a clutch ring consisting of two annular members, one of which is interposed between'the periphery of the primary driven member and the laterally extending 'arms of the driving member, and

the other of which is located exterior to the said arms, said clutch ring being adapted for locking engagement with either the pri.

mary er intermediate driven member, and means for giving shifting/movement to the said clutcli ring, comprising blocks engaging the said annular outer member of the clutch ring, a. pivoted yoke carryingsaid blocks, and manually operable means for giving shifting movement to said yoke.

19. In a change speed device, the combination of a nen-rotative bearing member provided with external gear teeth, a. primary driven member, an intermediate driven member provided lwith internal gearteeth, pinions mounted 0n `tl1e primary driven member and meshing with the gear teeth a lever atlached to one extremity of Said pivoted shaft, an auxiliary lever pivoted to the other extremity. of said lever and having angularly arrange arms of unequal length, the shorter of which turns on a fixed pivot, and a control rod pivoted to the longer arm of said' auxiliary lever. .1

2 0. In a change 'speed device, the combination of a non-rotative bearing member provided With external gear teeth, a primary driven member having bearing on`said nonrotative bearing member inside of the gear teeth on the latter, an intermediate driven member provided with internal gear teeth and having bearing on the outer endof said non-rotative bearing member, a driving member mounted on the said .primary driven member, pinions mounted 0n said primary driven member and adapted to mesh with and also to mesh with gear teeth of said intermediate driven member, means located radially exterior to the primary and intermediate driven members for locking said driving member either to said intermediate driven member or to said primary drivcn` member, anda casing attached to the outer end of the non-rotative bearing member, and extending over and around the intermediate the gearteeth on said non-rotative member driven member-and the locking means, and having its inner margin adjacent to the outer face of the driving member.

21. In a change speed device, the combination of a non-rotative bearing member provided with external gear teeth, a. primary 'driven member having bearing on said non- -rotative bearing member inside of the gear teeth on the latter, an intermediate *driven member provided with linternal gear teeth and having bearing on the outer end of said non-rotative .bearing member, a driving member mounted on the said primary driven member, pinions mounted on the said pri- Amary driven member and ada-pled to mesh with the gear teeth onsaid non-rotative member and also to mesh with gear teeth of said intermediate driven member, means located radially exterior to the primary and intermediate driven members for locking. -said driving member either to said intermediate driven: member er to said primary driven member, and a casing attached to the outer end of the 'non-romtivc bearing member and extending over and around the .in-

termediate driven member and the locking as my invention I affix my Signature in the means, and having lts lnner margin :tdw-y presence of tWo Wltnesses, thls 16th day of cent to the outer face of the driving member, August, A. D. 1912. A10 the said inner margin of the casing and the FRANK E. SPERRY.

5 driving member beingjr provided with dust Witnessem rings. G. P. SHAMBO,

In testimony, that L claim the feregoing ARTHUR N. LUNGREN. 

